Window construction



Nov.` 9, 1935. M. J. KoHU-r WINDOW CONSTRUCTION Filed April 7, 1952 Patented Nov. 19, 1935 UNITED STATES WINDOW CONSTRUCTION Michael J. Kohut, Elmhurst, N. Y., assignor of l one-half to Jacob L. Sherwood Application April '7, 1932, Serial No. 603,784

6 Claims.

My invention relates to windows and in particular to metal frame windows. The invention has for its object to produce a window of this type which is comparatively inexpensive to manufacture, simple in construction, effective in operation and in which the several parts are readily accessible for repair.

An .advantage of a window constructed in accordance with my invention is that it contains a sash-weight compartment and a sash-weight chain and Window guide compartment. These several compartments are formed in the stiles of the window frame which is made of sheet metal and which is hollow, the hollow stile forming the sash-weight compartment. In each stile member, there is formed a longitudinal window guide compartment adjacent the inner surface of the stile. Communicating with this longitudinal window guide compartment, there is a slot through the inner surface of the stile member which is of less width than the width of the guide compartment. The guide compartment is adapted to receive a guide formed on the side edges of a Window sash which is slidably mounted in the frame member. The guide compartment is of such cross-sectional area that there is provided suflicient room for the sash-weight chain which eX- tends from the sash-weight over a pulley at the top of the stile member and is secured to the guide in the guide compartment.

A feature of the window construction of my invention is the fact that the muntin bars forming a part of the window sash .are of interlocking construction and require none of the usual securing mea-iis such as bolts or screws. These mun tin bars are readily disassembled for replacing lights of glass.

Another feature of my invention is the fact that the sash-weight pulleys are mounted in a frame secured at the upper end of the stile members and are mounted on pins that are readily and easily assembled.

Speciiically, the window 'construction of my invention includes a window frame having stile and rail members. Each stile member is formed from three pieces of sheet metal, one of which pieces forms one side and a portion of the inner surface, another piece forms the outer surface, one side and a portion of the inner surface, and the third piece makes up the portion of the stile uniting the -two .latter pieces and completes the inner surface of the stile member. The stile so constructed forms a substantially rectangular sash-weight compartment of sufficient cross-sectional area to accommodate two sash-weights. One edge of each (Cl. 18S-7.2)

of the two pieces of sheet metal forming the sides and a portion of the inner surface of the stile members is bent to form a window guide and sashweight chain compartment. The central portion of the inner surface of the stile member forms 5 one side of each of these compartments and one side of a slot communicating with each of the compartments. One of the slots in each stile member accommodates an upper window sash and the other accommodates .a lower Window sash, and 10 the guide compartments cooperate with guides on the window sash for guiding the windows longitudinally of the stile members. Each window sash has formed on its side edge an extension that eX- tends through the slot in the stile member and l5 into the guide compartment. On the edge of these extensions, there are formed guides which are equal in width to the width of the guide compartment and bear against the sides of the compartment. A guide compartment is sufficiently large 20 in cross-section to accommodate, in addition to the window guide, a sash-weight chain which is secured to the guide formed on the ends of the extension extending from the window sash.

At the upper end of the stile members there is, 25 in each stile member, a frame constructed to support a Apair of pulleys, one for each window sash. This frame has a pair of bifurcated brackets for each pulley, the arms of each bracket having aligned openings therethrough which receive a 30 pin on which a pulley is rotatably mounted. One end of the pin has formed thereon an enlarged head of greater diameter than the opening through the bracket and this head is pressed against the side of the arm of the bracket by a resilient member. A sash-weight cha-in extends over this pulley and is secured at one end to the window guide and at the other end to a sashweight in the stile.

rlhe muntin bars forming a portion of the window sash each comprise two separable parts. One of the parts includes a pair of parallel, longitudinal flanges forming a central channel. This part also includes a raised longitudinal projection within the channel, the projection being parallel to the base of the channel. The other part of the muntin bar includes a substantially rectangular, hollow, longitudinal, central projection which is adapted to be received within the channel of the other part. This longitudinal, central, hollow projection has an opening in the base thereof to receive the raised projection within the channel in the other part. As the two parts are moved, relative to each other in a longitudinal direction, the base of the hollow projection on one o the parts is moved under the raised projection in the channel of the other part and the two parts become locked together. There may of course be one or more of these interlocking projections and recessed connections on a muntin bar.

Other objects and advantages of my invention will be apparent from the following particular` description of one embodiment thereof which is shown in the accompanying drawing in which:

Fig. 1 is a sectional elevation of a Window constructed in accordance with my invention;

Fig. 2 is a transverse fragmentary section taken on the line 2 2 of Fig. 1;

Fig. 3 is a transverse section similar to Fig. 2 taken on the line 3 3 of Fig. l;

Fig. 4 is an elevation of a muntin bar, partly in section;

Fig. 5 is a transverse section of the same taken on the line 5 5 of Fig. 4;

Fig. 6 is a transverse section of the same taken on the line 6 6 of Fig. 4; and

Fig. '7 is a perspective of a portion of one part of a muntin bar.

In the window construction illustrated in the drawing, the frame member consists of hollow stiles and upper and lower rails extending between the stile members. Each stile member is made up of three pieces of sheet metal. One piece of sheet metal l forms the outer side la and a portion lb of the inner side of the stile member. At the plane of the outer window sash, this piece of sheet metal is bent to form a guide compartment 2. 'Ihe metal is reversely bent and returns upon itself for a short distance; it is then bent at right angles to form one side 2a of the guide compartment and is again bent at right angles to form the base 2b of a guide compartment, the extreme edge being again bent at right angles to form a short iiange 3. Another piece of sheet metal 4 forms the back 4a inside 4b and a portion fic of the inner side of the stile. This piece oi metal is bent similar to the piece l to form the side and back of a guide compartment 5. A central piece of sheet metal 6 unites the ends of the pieces of sheet metal I and 4. This latter piece of sheet metal is substantially channel-shaped and the web thereof forms the central portion of the inner side of the stile, and each ange Ba forms a side of a guide compartment and a side of a slot 1 communicating with the guide compartment. A series of sheet metal braces 8, which have flanges Si contacting with and secured to the inner surface of the sides of the stile, extend around the guide compartments, and have a central portion te abutting against the central section 6 of the stile. These braces serve to reinforce the Istile member and act as supports for the central section of the stile which is secured to them. These metal braces may be welded or otherwise secured to the stile member.

At the upper end of each stile member, there is a pair of U-shaped brackets li extending into the stile member. Each pair of brackets is formed from a single piece of sheet metal which is secured to the guide compartments. Within each bracket between the legs of the U portions thereof, there is mounted a sash-weight chain pulley l2. This pulley is mounted on a pin I3 that extends through aligned openings in the arms oi the brackets. The pin has an enlarged head i!! on one end which is of greater diameter than the diameter of the hole through the bracket. A spring member l 5 presses against the head of this pin and holds the pin in place. Within the stile there is a pair of sash-weights iii, one for each guide compartment. To these sashweights one end of a. chain il is secured, the cha-in extending over the pulley and into the guide compartment associated therewith. 5

There are two guide compartments formed in each stile member, one for the upper window sash I8, and the other for the lower window sash i9. Each window sash has extensions 2id formed on its side edges. These extensions extend 10 through the slots 'l communicating with the guide compartments, and on the edge of the extensions. Within the guide compartments, guides 2| are formed on the extensions. These guides are of the same width as the guide compart- 15 ments and bear against the side of the guide compartments, cooperating therewith to guide the Window sash longitudinally of the stile member. At the upper edge of each of these guide members, there is a securing screw 22 to which 20 the 4end of a sash-Weight chain il' is secured. The guide compartment is sufficiently large to receive the sash-weight chain and serves to guide the chain as well as the window sash.

The upper rail 23 of the window frame is also 25 formed of sheet metal and is hollow. This faill has formed therein, in the plane of the extension on the upper window sash, a groove 25 which receives an extension 25 extending from the top of the window sash to form a weathertight connec- 30 tion between the rail and the window sash in the closed position of the window sash. The lower rail 26 is bent to a shape as clearly shown in Fig. l to provide an elevated portion 26a that extends above the lower edge of the lower window sash 35 and a horizontal shoulder 2l which engages the lower edge of the window sash in the closed position. This lower window sash also has formed on its lower edge an extension 28 that contacts with the rail below the shoulder or ledge 2 and 40 forms a weathertight connection with the lower rail. The sash meeting rails 25 are made of sheet metal, each meeting rail extends substantially half the distance between the window sashes. The contacting surfaces of the meeting rails have 45 formed therein complementary -Z-shaped projections which in the closed position of the window sashes, form a weathertight connection between the meeting rails.

The muntin bars forming a part of the upper 50 window sash, include two separable parts. One of the parts includes a plate 30, the edges oi which are` reversed upon itself and are then bent at right angles to form a pair of parallel, longitudinal flanges 3| which dei-ine a central chan'- 55 nel. At spaced intervals, there is secured to this member, at the base of the channel formed by the anges, a clip. This clip consists of a U- shaped section having the web 32 thereof raised above the base of the channel; in other words, 60 the U-shaped section is reversed with respect to the channel. The legs 33 of the U-shaped clips are flanged and secured to the plate, the clip flanges extending through the flanges 3l. Along one side of this` U-shaped clip, a groove is cut 65 for a purpose which will hereinafter appear.

The other part of the muntin bar comprises a plate S5 and a central longitudinal hollow projection 35. This part of the muntin bar is also formed of -sheet metal, the sheet metal being bent 70 to form the central longitudinal projection. At spaced intervals corresponding to the position of the clips on the other part oi the muntin bar, the base of the hollow projection of this part of the muntin bar is cut away as at 31, forming a re- 75 cess of suicient length to receive the entire clip on the other part of the muntin bar. When the clip is received in this cut-out section and the two parts of the muntin bar are moved relative to one another, the side of the hollow projection enters the groove 34 in the clip and the clip extends into the hollow projection and engages a portion of the base of this section, thereby locking the two p-arts of the muntin bar together. The lights of glass are received between the plates of the two parts of the muntin bar, the edge of the glass contacting with the flange 3 l Putty is used to fill the space between the muntin bar and Y the light of glass. Lights of glass are securely held in place in the muntin bar and as will be apparent, the muntin bar is readily disassembled to remove and replace a light of glass.

It will be obvious that various changes may be made by those skilled in the art in the construction described above within the principle and scope of my invention as expressed in the appended claims.

I claim:

l. In a window construction, a frame comprising sheet metal stile and rail members, each stile member having a longitudinal window guide compertinent adjacent its inner surface and a longitudinal slot thro-ugh its inner surface communicating with the guide compartment, a window sash in the window frame, and extensions extending from the side edges of the window sash through the slot in the inner surface of the Stilesand into the guide compartments, the ends of said extensions Ywithin the guide co-mpartments being bent to form guides on the edges of the extensions equal in width to the guide compartment and adapted tol contact with the side and front walls thereof to guide the window sash.

2. In a window construction, a sheet metal stile member forming a substantially rectangular sash- Weight compartment, a bifurcated bracket extending into said compartment adjacent the upper end thereof, a pivot pin extending through the sides of the bracket, the pivot pin having an enlarged head on one end, a pulley rotatably mounted on the pivot pin between the arms of the bracket, and a resilient metal strip secured to the stile member and resiliently pressing on the enlarged head of the pivot pin.

3. In a window construction, la frame compris.- ing sheet metal stile and rail members, each sheet metal stile member forming a sash-weight compartment and having a pair of parallel, longitudinal guide compartments adjacent its inner surface, and a longitudinal slot of less width than the guide compartment through the inner surface of the stile member for each guide compartment and including a removable plate of substantially channel-shape in cross section between the guide compartments, each flange of the channel-shaped plate forming a side of a guide compartment and a side of the slot communicating therewith, a window sash in the window frame, extensions extending from the side edges of the Window sash and'through the slots in the stiles and into the guide compartments, and a guide on the edgeof said extensions equal in width to the guide compartments and adapted to contact with the side and inner walls thereof to guide the window sash.

4. In a window construction, a frame comprising sheet metal stile and rail members, each stile member forming a sash-weight compartment and having a pair of parallel, longitudinal guide compartments adjacent its inner surface, and a' longitudinal slot of less width than the guide compartment through the inner surface of the stile member for each guide compartment and including a removable plate of substantially channel-shape in cross section between the guide compartments, each flange of the channelshaped plate forming a side of a guide compartment and a side of the slot communicating therewith, a window sash in the window frame, extensions extending from the side edges of the window sash through the slot in thev inner surface of the stiles and into the guide compartments, the ends. of the extensions within the guide compartments being bent to form guides on the edges of the extensions. equal in width to the guide compartmentsl and adapted to contact with the side and front walls thereof to guide the window sash.

5. In a window construction, a frame comprising sheet metal stile and rail members, each stile member forming a sash-weight compartment and having a pair of parallel, longitudinal guide compartments adjacent its inner surface, and a longitudinal slot of less width than the guide compartment through the inner surface of the stile member foreach guide compartment, braces for the inner surface of lsaid stile member and said guide compartment each stile memberv including a plate of substantially channel-shape in cross section between the guide compartments secured to said braces, each flange of the channel-shaped plate forming a side of a guide compartment and a side of the slot communicating therewith and the web of the plate constituting the inner side of the stile between the guide compartments, a window sash in the window frame and extensions extending from the side edges of the Window sash through the slot in the inner surface of the stiles and into the guide compartments, each extension within a guide compartment being reversely bent and having two side surfaces engaging the side walls of the compartment and an end adapted to abut against the inner wall of the compartment.

6. In a window construction, a frame comprising sheet metal stile and rail members, each stile member having a longitudinal window guide compartment `adjacent its inner surface and a longitudinal slot through its inner surface communicating with the guide compartment, a window sash in the window frame, and extensions extending from the side edges of the window sash through the slot in the inner surface of the stiles and into the guide compartments, the ends of each of said extensions within the guide compartments being reversely bent and having two side surfaces engaging the side walls of the compartment and an end abutting against the inner wall of the compartment.

MICHAEL J. KOHUT. 

